Filter.



No. 638,|67. Patented Nov. `28, |899.. E. BENJAMIN & G. vP. JACKSON.

F l L T E. R

(Application filed Sept. 23, 1899.)

(No Model.)

TH: Nonms Pneus u1. rnoouuo., WASHINGTON, D. c.

UNTTEE STATES PATENT CEETEE.

ELIJAH BENJAMIN AND GREEN P. JACKSON, OF CLARKSVILLE, TENNESSEE, ASSIGNORS ONE-HALFTO MICHAEL SAVAGE AND MATT J. BRANNI- GAN, or SAME PLAGE.

FILTER.

SPECIFICATION forming part of Letters Patent No. 638,167, dated November 28, 1899. Application filed September 23, 1899. Serial No. 731,417. (No model.)

To all whom it may concern:

Be it known that We, ELIJAH BENJAMIN and GREEN P. JACKSON, citizens of the United States, residing at Clarksville, in the county of Montgomery and State of Tennessee, have invented anew and useful Filter, of which the following is a specification.

Our invent-ion relates to filters of that class particularly designed for the filtering of Water prior to its admission to a cistern or other reservoir; and our object is to effect the thorough filtration of the Water by leading it into one end of a circulating-chamber at the bottom of the filter-casing and at a point adjacent to one end of the casing to permit the deposit of sediment, then leading the Water throughfiltering media to the top of the casing and effecting its egress adjacent to the top of the casing and at a point above the filtering media and at the same end of the casing at which its entrance is effected.

A further object of Vthe invention is to so arrange the inlet-pipe and flushing or escape pipe that a violent circulation may be set up from end to end of the circulatingchamber to effect the detachment and removal of sediment which may accumulate during the use of the filter.

A still further object is the provision of a simple and inexpensive form of locking mechanism for retaining the Bushing-valve in its open or closed positions.

To the accomplishment of these several objects our invention consists in the construction and arrangement of parts hereinafterdescribed, and illustrated in the drawings, in Which- Figure l is a perspective view of our filter. Fig. 2 is a central vertical section through the subject-matter of Fig. l, and Fig. 3 is a detail View of the mechanism employed for locking.

the valve.

Referring to the reference-numerals designating corresponding parts in the several views7 there is shown a filter-casing constructed of metal or other suitable material and comprising side Walls 1 and 2, end Walls 3 and 4, and top and bottom Walls5 and 6. Within this casing at a suitable distance from its bottom, preferably comparatively adjacent thereto, is removably supported a numerouslyeperforated partition 7, defining between itself and the bottom Wall 6 a circulating-chamber 8 and designed to support any desired quantity of any preferred filtering media 9-as, for instance, sand, charcoal, or the like.

The Water from any suitable source-as, for instance, the valleys of a house during a rainstorm-is conveyed through an inletepipe 10, extending through the top Wall5 and par allel with the end Wall 4t, to the circulatingchamber 8. lThe inlet-pipe l0 is preferably contiguous to thewall 4 and pierces the par; tition 7 at the rear end of the circulatingchamber 8. The Water as it passes into the circulating-chamber will flow down to the.

bottom Wall 6 and across the iilterone or more times and from top to bottom of the chamber 8, and vice versa, according to the strength of the inliowing current. In this manner a certain amount of sediment Will be deposited upon the bottom Wall 6, and the Water Will then rise through the partition 7 and will be deprived of its remaining impurities as it is forced through the filtering media 9. The pure water nally escapes at a point adjacent to the top of the rear Wall into the outlet-pipe ll, leading to the cistern or other res ervoir. The opening to the pipe ll is preferably protected by a convex perforated shield or screen l2, the flat peripheral flange 13 of Whichis secured by anysuitable means tothe interior face of the Wall 4 and concentric With the opening in the pipe. The location of the opening to the outlet-pipe at the upper rear corner of the casing and the introduction `of the inlet-pipe l0 at the rear end of the circulating-chamber 8 is a novel arrangement productive of excellent results, since it will be observed that the Water is thus caused to circulate from end to end of the circulatingchamber, thence upwardly through the filtering media, and then back across the casing `from end to end to the upper rear corner of the casing, Where it finds its escape.

Considerable Water-space is provided above the filtering media 9 to facilitate the settling of the tine particles of charcoal or other material employed before it is carried high enough to be drawn through the screen 12 or to clog the openings therethrough.

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14 indicates a depending nipple at the lower front corner of the casing, from which extends an escape or flushing pipe 15, controlled bya flushingvalve 16, closing the opening 17 into the nipple and carried at the lower end of a valve-rod 18, piercing the partition 7 and the top Wall 5 of the casing and terminating at its upper end in a cross-bar or handle 19.

When it is desired to remove the accu mulated impurities from the filter, it is simply necessary to raise the handle 19, thereby opening the flushing-valve 16 and causing the contained Water to escape through the pipe 15. After the casing is emptied a strong current of water is permitted to enter through the pipe 10 and, circulating violently through the chamber S from the lower end of the inlet-pipe to the upper end of the escape-pipe located at? opposite ends of the circulatingchamber, effects the detachment and removal of any sediment not carried off by the water previously escaping.

As devices of this character are frequently employed in connection with the water-supply of dwellings, it is essential that some provision he made for preventing the malicious or accidental opening or closing of the flushing-valve. WVe therefore provide a handle latch-frame 20, located adjacent to the upper end of the rod 18 and mounted upon the top wall 5 of the casing. 1t comprises vertical standards 2l and 22, bolted or otherwise secured to the top wall 5 and terminating in different planes to support the ends of substantially horizontal but slightly inclined resilient latch-bars 23 and 24:, extendingin the same direction and connected at their ends by a connecting-plate 25. The latch-frame thus constructed extends across the top of the casing sufficientlyv close to the rod 18 to permit one end of the handle or cross-bar 19 to be wedged under the latch-bar 24 when the valve is in the closed position or upon the bar 23 when the valve is in its open position. The latch-bars and the end of the handle may be provided with apertures 26 and 27, respectively, for the reception of locking-pins 28 or for the introduction of a lock-hasp 29.

30 indicates a hinged section of the top wall 5, constituting a cover and preferably having its free end and its side edges overlapping the contiguous edges of the walls 1, 2, and 5. This hinged section, which constitutes a door or cover for obtaining access to the interior of the casing for effecting the introduction or removal of the filtering media, is provided with a bail or handle 31 and with a latch 33 of any desired form.

It will appear from the foregoing that we have produced a simple and highly-efficient filter; but we desire to reserve the right to effect such structural changes as may come within the scope of the invention.

1. In a filter, the combination with a casing provided with a circulating-chamber extending entirely across its bottom, of an inlet-pipe opening into the chamber at the rear end of the casing, an outlet-pipe opening into the rear end of the casing adjacent to its top, and a flushing-pipe extending from the chamber at the end opposite the inlet-pipe.

2. In a filter, the combination With a casing and a horizontal perforated partition therein defining a circulating-chamber extending entirely across the bottom of the casing, an inlet-pipe extending vertically into the casing and opening into the circulating-chamber at the rear end of its upper wall, a valve-controlled fiushiug-pipe opening through the bottom Wall of the casing adjacent to its front end, an outlet-pipe opening into the casing adjacent to its upper rear corner, and means upon the exterior of the casing for operating the valve controlling the flushing-pipe.

3. In a filter, the combination with avalve and valve-rod, of a plurality of spring-latches in operative relation with the valve-rod.

4. The combination with a valve-rod provided with a cross-bar, of a latch-frame comprising a pair of resilient latch-bars arranged to ret-ain the cross-bar of the valve-rod.

5. In aiilter, the combination with a casing, of a latch-frame supported thereby, a [lushing-pipe leading from the casing, a valve controlling said pipe, and a valve-rod extending from the valve and provided with a crossbar arranged to be swung into engagement with the latch-'frame to lock the valve in its open and' closed positions.

I6. In a filter, the combination with a casing, and inlet, out-let and iiushing pipes, of a valve controlling the liushing-pipe, a valve-rod extending from the valve and provided at its end above the casing With a cross-bar, a latchframe upon the top of the casing comprising a plurality of spring latch-bars in different planes and arranged to retain the cross-bar to lock the valve in its open and closed positions, and a locking device for locking the cross-bar of the valve-rod to the latch-bars.

In testimony that We claim the foregoing as our own We have hereto affixed our signatures in the presence of two Witnesses.

ELU AH BENJAMIN. GREEN P. JACKSON.

Witnesses:

H. N. LEEoH, CHARLES E. RITTER.

IOD

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